基于sdr的车载通信信道仿真器

Ángel E. Ruiz-García, C. Gutiérrez, J. Vázquez-Castillo, J. Cortez
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引用次数: 6

摘要

近年来,新型智能交通系统的发展有所增加。具体来说,提出该技术的目的是通过车辆之间的信息交换来提高道路安全和改善交通流管理。从这个意义上讲,专用无线电短距离通信(DSRC)技术可实现可靠的车对车(V2V)和车对基础设施(V2I)通信。然而,为了保证无线电发射系统的正确运行,有必要在受控条件下对发射机和接收机进行测试。通道仿真器提供了一种快速且不昂贵的解决方案来执行这些测试。提出了一种基于软件定义无线电(SDR)的车载非广义平稳不相关散射(non- wssus)信道仿真器。实现结果表明,该信道仿真器能较准确地再现非wssus信道所对应的传播环境。这将允许使用基于sdr的V2V-V2I通道模拟器测试正在开发的通信系统。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
SDR-Based Channel Emulator for Vehicular Communications
Recently, there has been an increase in the development of new intelligent transportation systems. Specifically, this technology was proposed with the aim of increasing road safety and improving traffic flow management by information interchange among vehicles. In this sense, the dedicated radio short-range communication (DSRC) technology enables reliable vehicle-to-vehicle (V2V) and vehicleto-infrastructure (V2I) communication. However, in order to guarantee the correct operation of the radio transmission systems, it is necessary to test the transmitter and receiver devices under controlled conditions. A channel emulator offers a fast and non-expensive solution to perform these tests. This paper presents a new non wide-sense stationary uncorrelated scattering (non-WSSUS) channel emulator for vehicle communications, which is based on software defined radios (SDR). Implementation results show that the proposed channel emulator can reproduce propagation environment corresponding to non-WSSUS channels with exactness. This will allow testing of communications systems under development using the SDR-based V2V-V2I channel emulator.
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